diff --git a/build/build-x86.bat b/build/build-x86.bat
index 56dd6f8d..8e883ee1 100644
--- a/build/build-x86.bat
+++ b/build/build-x86.bat
@@ -2,7 +2,7 @@
 set OPATH=%PATH%
 set PATH=c:\mozilla-build\msys\bin
 cd ..\src
-cat makeinc.skel >> makeinc.mak
+cat makeinc.skel > makeinc.mak
 set INCLUDE=c:\WinDDK\7600.16385.1\inc\api;c:\WinDDK\7600.16385.1\inc\crt;c:\WinDDK\7600.16385.1\inc\api\crt\stl70;c:\mozilla-build\build\xchat-dev32\include
 set LIB=c:\WinDDK\7600.16385.1\lib\wxp\i386;c:\WinDDK\7600.16385.1\lib\Crt\i386
 set PATH=c:\WinDDK\7600.16385.1\bin\x86\x86;c:\WinDDK\7600.16385.1\bin\x86;c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin;c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin;c:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE;c:\mozilla-build\build\xchat-dev32\bin;c:\mozilla-build\mingw32\bin;c:\mozilla-build\perl-5.12-x86\bin